Method 1640 Tuning Standard Back Catalog number: 53147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1998.10-10MG Octachloronaphthalene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 2234-13-1 Price on request 91986 Surrogate Mix Price on request A50000575DI OEKO-TEX PAH Mixture 575, 500µg/mL in Dichloromethane, 1ml Price on request